<template>
  <div class="list" ref="wrapper">
    <div>
      <div class="area">
        <div class="title border-topbottom">当前城市</div>
        <div class="button-list">
          <div class="button-wrapper">
            <div class="button">{{this.curryCity}}</div>
          </div>
        </div>
      </div>
      <div class="area">
        <div class="title border-topbottom">热门城市</div>
        <div class="button-list">
          <div class="button-wrapper" v-for="item of hot" :key="item.id" @click="handleClickCity(item.name)">
            <div class="button">{{item.name}}</div>
          </div>
        </div>
      </div>
      <div class="area" v-for="(item, key ) of cities" :key="key" :ref="key">
        <div class="title border-topbottom">{{key}}</div>
        <div class="item-list" >
          <div class="item border-bottom" v-for="inner of item" :key="inner.id" @click="handleClickCity(inner.name)">{{inner.name}}</div>
        </div>
      </div>
    </div>
  </div>
</template>
<script>
import { mapState,mapMutations} from 'vuex'
import BScroll from 'better-scroll'
export default {
  name: "CityList",
  props:{
      hot:Array,
      cities:Object,
      letter:String

  },
  computed:{
    ...mapState({curryCity:'city'})
  },
  mounted(){
      this.scroll=new BScroll(this.$refs.wrapper)
  },
  watch:{
    letter (){
        if(this.letter){
          const element =this.$refs[this.letter][0]
          this.scroll.scrollToElement(element)
        }
      }
    },
  methods:{
    handleClickCity(city){
      // this.$store.dispatch('changeCity',city)
      this.changeCity(city)
      this.$router.push('/')

    },
    ...mapMutations(['changeCity'])
  }
  


  
};
</script>

<style lang="stylus" scoped>
@import '~styles/varibles';

.border-topbottom {
  &:before {
    border-color: #ccc;
  }

  &:after {
    border-color: #ccc;
  }
}

.border-topbottom {
  &:before {
    border-color: #ccc;
  }
}

.list {
  overflow: hidden;
  position: absolute;
  top: 79px;
  left: 0;
  right: 0;
  bottom: 0;

  .title {
    line-height: 27px;
    background: #eee;
    padding-left: 10px;
    color: #212121;
    font-sizing: 13px;
  }

  .button-list {
    overflow: hidden;
    padding: 5px 30px 5px 5px;

    .button-wrapper {
      float: left;
      width: 33.33%;

      .button {
        margin: 5px;
        text-align: center;
        border: 1px solid #ccc;
        padding: 5px 0;
      }
    }
  }

  .item-list {
    .item {
      line-height: 38px;
      color: #212121;
      padding-left: 10px;
    }
  }
}
</style>
